FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2321886607> ?p ?o ?g. }

• W2321886607 abstract "The paper analyses and discusses the results of recent experimental works on the influence of non-uniform plasma formations on streamlined bodies characteristics in a high-speed airflow. The widely recognized fact that the structure of these kinds of discharges is typically non-uniform is confirmed. New experimental results of the plasma influence on a boundary layer near plane and profiled plates along with the data on the plasma generation near the body surface and the discharge effects on the location and size of the separation zones are presented. The problem of the effectiveness of plasma aerodynamics methods is discussed. The conditions where/when non-thermal plasma properties can be observed, .are exampled. It is concluded that the local non-uniform plasma formations are, probably, most promising for the objectives of Advance Flow/Flight Control (AFFC). The recommendations on possible applications of plasma formations of different types are derived. Introduction. This paper analyses and discusses results of the last experimental works on influence of non-uniform plasma formations on characteristics of streamlined bodies in a high-speed airflow. At the present time there are a number of theoretical and experimental works demonstrating that the total drag of a body in the airflow can be reduced significantly by the energy release near/fore the body and the energetic effectiveness can be rather high (even higher than In the case of an aerodynamically optimized body with already provided low drag, the effective drag reduction is hardly possible. The chart in Fig.l shows the experimental dependence of counterblow plasma jet influence effectiveness on the initial drag factor under supersonic airflow conditions [4]. It is clearly seen that an optimal shape of streamlined body limits the effective enhancement. Effectiveness, % ^fjf' -1——I——I——I————I——I——J——,——I 0.00 0.20 0.40 0.60 0.80 1.00 Figure I The energetic effectiveness of a plasma jet vs initial drag factor of body. M=J. 7+2.0. Another type of plasma formation can demonstrate different values of the effect but the similar trend The vehicle designed for one of specific modes of flight conditions can spend a large part of the flight time at non-optimal aerodynamic situation. Probably, the most critical fraction of the trajectory lies under transonic mode of airflow-body interaction, especially, at the complex shape of the vehicle. The plasma technology can provide an effective influence on position and amplitude of local shocks and parameters of separation zones. Samples of such plasma effects are presented below. In general case the drag force of a vehicle at atmospheric flight is composed as the sum of the friction drag and the pressure drag. At the same time the pressure drag includes the wave drag, the base drag, the interference drag etc. The contributions of each component to the total drag at subsonic, transonic and supersonic flight modes are different. Usually the main attention is paid to pressure/wave shares of the total drag. Analysis of aerodynamic situation shows that the friction and interference effects can play an important role as well. Special advantages of plasma technology are anticipated for problem of internal flow enhancement. Plasma aerodynamics effects are associated with energy release and modification of gas-kinetic and electro-magnetic properties of media. Typically, inflow generated plasma appears as a non-uniform and unsteady formation. Utilization of a fully controllable electrical discharge could significantly decrease the required energy input to airflow. A special interest in electrodeless and single-electrode plasma generation has arisen due to its possibility to provide the energy deposition and gas property modifications at a predefined zone of the flowfield, prospectively, under the effective electronic control of plasma location. The mentioned above objectives of Plasma Aerodynamics for external flow applications could be now formulated as follows: (1) to compensate aerodynamic loses under non-optimal (off-design) flight conditions, (2) to stabilize the airflow structure at instabilities, (3) to decrease the effects of the aerodynamic interference, (4) to provide a fast flow/flight control etc. Copyright © 2001 The American Institute of Aeronautic and Astronautic Inc. All rights reserved." @default.
• W2321886607 created "2016-06-24" @default.
• W2321886607 creator A5010849723 @default.
• W2321886607 creator A5011866076 @default.
• W2321886607 creator A5036326191 @default.
• W2321886607 creator A5054176783 @default.
• W2321886607 creator A5062650846 @default.
• W2321886607 date "2001-06-11" @default.
• W2321886607 modified "2023-09-23" @default.
• W2321886607 title "Influence of structural electric discharges on parameters of streamlined bodies in airflow" @default.
• W2321886607 cites W2325621551 @default.
• W2321886607 cites W2334898799 @default.
• W2321886607 cites W2993952609 @default.
• W2321886607 doi "https://doi.org/10.2514/6.2001-3057" @default.
• W2321886607 hasPublicationYear "2001" @default.
• W2321886607 type Work @default.
• W2321886607 sameAs 2321886607 @default.
• W2321886607 citedByCount "17" @default.
• W2321886607 countsByYear W23218866072019 @default.
• W2321886607 countsByYear W23218866072022 @default.
• W2321886607 crossrefType "proceedings-article" @default.
• W2321886607 hasAuthorship W2321886607A5010849723 @default.
• W2321886607 hasAuthorship W2321886607A5011866076 @default.
• W2321886607 hasAuthorship W2321886607A5036326191 @default.
• W2321886607 hasAuthorship W2321886607A5054176783 @default.
• W2321886607 hasAuthorship W2321886607A5062650846 @default.
• W2321886607 hasConcept C116067010 @default.
• W2321886607 hasConcept C121332964 @default.
• W2321886607 hasConcept C127413603 @default.
• W2321886607 hasConcept C39432304 @default.
• W2321886607 hasConcept C57879066 @default.
• W2321886607 hasConcept C78519656 @default.
• W2321886607 hasConceptScore W2321886607C116067010 @default.
• W2321886607 hasConceptScore W2321886607C121332964 @default.
• W2321886607 hasConceptScore W2321886607C127413603 @default.
• W2321886607 hasConceptScore W2321886607C39432304 @default.
• W2321886607 hasConceptScore W2321886607C57879066 @default.
• W2321886607 hasConceptScore W2321886607C78519656 @default.
• W2321886607 hasLocation W23218866071 @default.
• W2321886607 hasOpenAccess W2321886607 @default.
• W2321886607 hasPrimaryLocation W23218866071 @default.
• W2321886607 hasRelatedWork W1996901009 @default.
• W2321886607 hasRelatedWork W2029916535 @default.
• W2321886607 hasRelatedWork W2039282220 @default.
• W2321886607 hasRelatedWork W2047993403 @default.
• W2321886607 hasRelatedWork W2384325540 @default.
• W2321886607 hasRelatedWork W2388687305 @default.
• W2321886607 hasRelatedWork W2930621862 @default.
• W2321886607 hasRelatedWork W3164722452 @default.
• W2321886607 hasRelatedWork W4282958605 @default.
• W2321886607 hasRelatedWork W4296699104 @default.
• W2321886607 isParatext "false" @default.
• W2321886607 isRetracted "false" @default.
• W2321886607 magId "2321886607" @default.
• W2321886607 workType "article" @default.